Remove duplicate methods and variables from WearRecoveryUI

Copy pasta is never as delicious as ones hopes.

Also fix the Pike not rendering recovery bug.

Change-Id: I903da7da436e3347a22ff51633e8a0f28fea2c46
diff --git a/screen_ui.cpp b/screen_ui.cpp
index c2b5326..f884797 100644
--- a/screen_ui.cpp
+++ b/screen_ui.cpp
@@ -53,8 +53,6 @@
 ScreenRecoveryUI::ScreenRecoveryUI() :
     currentIcon(NONE),
     locale(nullptr),
-    intro_done(false),
-    current_frame(0),
     progressBarType(EMPTY),
     progressScopeStart(0),
     progressScopeSize(0),
@@ -75,6 +73,8 @@
     file_viewer_text_(nullptr),
     intro_frames(0),
     loop_frames(0),
+    current_frame(0),
+    intro_done(false),
     animation_fps(30), // TODO: there's currently no way to infer this.
     stage(-1),
     max_stage(-1),
@@ -447,9 +447,18 @@
     Redraw();
 }
 
-void ScreenRecoveryUI::Init() {
+void ScreenRecoveryUI::InitTextParams() {
     gr_init();
 
+    gr_font_size(gr_sys_font(), &char_width_, &char_height_);
+    text_rows_ = gr_fb_height() / char_height_;
+    text_cols_ = gr_fb_width() / char_width_;
+}
+
+void ScreenRecoveryUI::Init() {
+    RecoveryUI::Init();
+    InitTextParams();
+
     density_ = static_cast<float>(property_get_int32("ro.sf.lcd_density", 160)) / 160.f;
 
     // Are we portrait or landscape?
@@ -457,10 +466,6 @@
     // Are we the large variant of our base layout?
     if (gr_fb_height() > PixelsFromDp(800)) ++layout_;
 
-    gr_font_size(gr_sys_font(), &char_width_, &char_height_);
-    text_rows_ = gr_fb_height() / char_height_;
-    text_cols_ = gr_fb_width() / char_width_;
-
     text_ = Alloc2d(text_rows_, text_cols_ + 1);
     file_viewer_text_ = Alloc2d(text_rows_, text_cols_ + 1);
     menu_ = Alloc2d(text_rows_, text_cols_ + 1);
@@ -487,37 +492,44 @@
     LoadAnimation();
 
     pthread_create(&progress_thread_, nullptr, ProgressThreadStartRoutine, this);
-
-    RecoveryUI::Init();
 }
 
 void ScreenRecoveryUI::LoadAnimation() {
-    // How many frames of intro and loop do we have?
     std::unique_ptr<DIR, decltype(&closedir)> dir(opendir("/res/images"), closedir);
     dirent* de;
+    std::vector<std::string> intro_frame_names;
+    std::vector<std::string> loop_frame_names;
+
     while ((de = readdir(dir.get())) != nullptr) {
-        int value;
-        if (sscanf(de->d_name, "intro%d", &value) == 1 && intro_frames < (value + 1)) {
-            intro_frames = value + 1;
-        } else if (sscanf(de->d_name, "loop%d", &value) == 1 && loop_frames < (value + 1)) {
-            loop_frames = value + 1;
+        int value, num_chars;
+        if (sscanf(de->d_name, "intro%d%n.png", &value, &num_chars) == 1) {
+            intro_frame_names.emplace_back(de->d_name, num_chars);
+        } else if (sscanf(de->d_name, "loop%d%n.png", &value, &num_chars) == 1) {
+            loop_frame_names.emplace_back(de->d_name, num_chars);
         }
     }
 
+    intro_frames = intro_frame_names.size();
+    loop_frames = loop_frame_names.size();
+
+    LOGD("Recovery animation intro_frames: %d, loop_frames: %d\n", intro_frames, loop_frames);
+
     // It's okay to not have an intro.
     if (intro_frames == 0) intro_done = true;
     // But you must have an animation.
     if (loop_frames == 0) abort();
 
+    std::sort(intro_frame_names.begin(), intro_frame_names.end());
+    std::sort(loop_frame_names.begin(), loop_frame_names.end());
+
     introFrames = new GRSurface*[intro_frames];
-    for (int i = 0; i < intro_frames; ++i) {
-        // TODO: remember the names above, so we don't have to hard-code the number of 0s.
-        LoadBitmap(android::base::StringPrintf("intro%05d", i).c_str(), &introFrames[i]);
+    for (size_t i = 0; i < intro_frames; i++) {
+        LoadBitmap(intro_frame_names.at(i).c_str(), &introFrames[i]);
     }
 
     loopFrames = new GRSurface*[loop_frames];
-    for (int i = 0; i < loop_frames; ++i) {
-        LoadBitmap(android::base::StringPrintf("loop%05d", i).c_str(), &loopFrames[i]);
+    for (size_t i = 0; i < loop_frames; i++) {
+        LoadBitmap(loop_frame_names.at(i).c_str(), &loopFrames[i]);
     }
 }